27 



Duncan, J. T. I926 On a bactericidal principle present 

 in the alimentary canal of insects and Arachnids. 

 Parasitol. 18, 238. 



Dyson, J. E. B. and Lloyd, L. 1933 Remarks on the flies 

 "breeding in the bacteria beds at the Knostrop Sewage 

 Works, Leeds. Surveyor, Qk, 335~337' 



Forbes, S. A. I892 Bacteria normal to digestive organs 

 of Hemiptera. Bull. 111. State Lao. Natural Hist,, 

 Art I. , V. k. 



Frost, F. M. , Herms, W. B. , and Hoskins, W. M, 1936 

 The nutritional requirements of the larva of the mos- 

 quito, Theobaldia incidens (Thorn.)- J- Exp, Zool. , 73, 

 I+6I-U79. 



Gjullin, C. M. , Yates, W. ¥. , and Stage, H. H. 1939 The 

 effect of certain chemicals on the hatching of mosquito 



- eggs. Science, 89, 539"5^0, 



Glaser, R. W. I92U The relation of microorganisms to 

 the development and longevity of flies. Am. J, Trop, 

 Med. , k, 85-IO7. 



Glaser, R. W. 1925 Specificity in bacterial diseases 

 with special reference to silkworms and tent cater- 

 pillars, J. Econ. Entomol. , 18, 769~771> 



Glaser, R. W. 1938 A method for the sterile culture of 

 houseflies. J. Parasitol., 2k, 177-179, 



Glasgow, H. 191^ The gastric caeca and the caecal 

 "bacteria of the Heteroptera. Biol. Bull. Marine Bio.. 

 Lab. , 26, 101-170. 



Graham-Smith, G. S. 1909 Preliminary note on examina- 

 tions of flies for the presence of colon bacilli . 

 Gt. Brit. Local Govt. Bd. , Rpts. Pub. Health and Med. 

 Subjs. New Series, No. l6, 9-13, 



Graham-Smith, G. S. 1913 Flies in relation to disease. 

 Cambridge Univ. Press, London, 292 pp. 



Guyenot, E. I906 Sur le mode de nutrition de quelques 

 larves de mouches. Compt. rend. soc. biol. , 6l, 63^-635. 



Guyenot, E. 1907 L'appareil digestive de quelques larves 

 des mouches. _ Bull. sci. France Belg. , hi, 353-370. 



Hering, M. I926 Die Oekologie der blattminierenden 

 Insektenlarven. Chapt. 10 (pp. 100-1M+), Berlin. 



Hertig, M. 1923 The normal and pathological histology 

 of the ventriculus of the honey-bee, with special 

 reference to infection with Nosema apis . J, Parasitol. , 

 9, 109-l ] +0. 



Hewitt, C. G. 191^ The house-fly. Cambridge Univ, Press, 

 London. 382 pp, 



Hindle, E. and Duncan, J. T. 1925 The viability of bac- 

 teria in Argas persicus . Parasitol. , 17, h^h-hk6. 



